The upcoming "Miyamoto" game has nothing to do with the legendary Nintendo creator Shigeru Miyamoto. It is a separate game from a different developer that just happens to share the same name. The web search results indicate this is simply a coincidence, and the new "Miyamoto" game is not affiliated with the iconic game designer in any way.
FYI, Upcoming 'Miyamoto' Game Has Nothing To Do With The Legendary Creator
It looks kinda neat, though
www.nintendolife.com